Author: Edward C. Navarre, Southern Illinois University Edwardsville Description: Data sets for a two-factor Simplex optimization are generated in R code. The data is then moved to an Excel spreadsheet as a look-up table. An Excel ‘front end’ allows students to simulate a Simplex method search of the factor space. Code for generating the data, examples of the…
Description: Shannon Coleman, GC Application Scientist from Agilent presents options that address current helium shortages. Strategies for Helium Carrier Gas Conservation and Transition to Alternative Carrier Gas This discussion will focus on understanding tactics for carrier gas conservation, including what hardware and strategies are available for conservation. Alternative carrier gas options will be explored, as…
This video, part of the knowbeetutoring collection available from Wordpress.com offers a basic but effective introduction to ion production of organic molecules in an electron ionization spectrometer. The basis for fragmentation is explained for the propane molecule using very clear graphics. It is an excellent first exposure to the technique, and supplies a very solid…
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This laboratory experiment makes use of HPLC-MS to identify and quantify uric acid, 6-aminouracil (6-AU), and allantoin in synthetic urine, with tyrosine as an internal standard. It is designed for use in Quantitative Analysis laboratory, but may find applications in forensic and biochemistry laboratories as well. An Excel file is provided that serves as…
This site offers an introductory course (as a MOOC) on the estimation of measurement uncertainty specifically related to chemical analysis (analytical chemistry). The course gives the main concepts and mathematical apparatus of measurement uncertainty estimation and introduces two principal approaches to measurement uncertainty estimation – the ISO GUM modeling approach (aa “bottom-up” approach) and the single-lab…
A set of slides that explain in detail the important aspects of interpreting EI mass spectra as obtained in GC-MS. The site explains how to use common losses (e.g. water), use of isotopic peaks, mass defects, the nitrogen rule and identifying the presence of rings and unsaturated bonds..
The website is available here .
A set of slides that explain in detail the important aspects of interpreting EI mass spectra as obtained in GC-MS. The site explains how to use common losses (e.g. water), use of isotopic peaks, mass defects, the nitrogen rule and identifying the presence of rings and unsaturated bonds.The website is available here .
These materials on chemical equilibrium are designed to spark an active learning environment in the classroom. Materials can be downloaded and modified to fit particular learning goals.
The website is available here .
Horiba scientists wrote this tutorial to help people learn about Raman spectroscopy. The authors write clearly and provide great illustrations to accompany the text. The tutorial addresses the theory of Stokes & anti-Stokes Raman scattering, SERS and other techniques. In addition, the tutorial introduces the instruments needed for Raman experiments - like lasers, optics, and microscopes.…
Designed as a faculty resource on separation science, with a particular emphasis on chromatographic separations. The published materials focus on active learning but may be modified to fit any curricular pedagogy. Materials include a text, sample problems, and an instructor's manual.
The website is available here .